I am currently in the process of extending my home network via wi-fi to cover my sister’s flat, which is about 250 – 300m away as the crow flies. I have tested my setup and I am able to successfully reach her flat with a strong signal. The whole idea behind doing this is so that she has free access to the internet rather than paying for an expensive 3G dongle, and has access to watch the videos stored on one of my home servers. My Current Network Devices: Netgear WNDR3700 Router Several Computers running win 7 pro Two windows home servers Netgear Stora NAS PS3, Wii & Xbox What my sister has: A laptop running xp A desktop pc, running either xp or vista A ps3 & a wii I have done a little bit of testing and the standard user password on Win 7 does seem to be able to keep other Win7 computers and PS3’s out. However the PS3 is easily able to access all of the information on the servers and the NAS without having to input the password. Basically I want to adjust the settings on my devices so that no one else on the network can access them; however I still want to be able to share files between my devices. The only exception to this rule is the shared videos folder on one of the windows home server’s; I want to have full access to the folder, whilst everyone else on the network can only view and open the files. Any suggestions as to how I could secure my devices from other people on the network?